Finding the Fourth Proportional to 249,318,007.20, 373,977,010.80 and 242,143,553.70
Calculator
Solution
The fourth proportional to 249,318,007.20, 373,977,010.80 and 242,143,553.70 is: 363,215,330.55
Step by Step Solution
- Step 1: Write the proportion equation
249,318,007.20 : 373,977,010.80 = 242,143,553.70 : x - Step 2: Convert to fraction form
249,318,007.20/373,977,010.80 = 242,143,553.70/x - Step 3: Cross multiply
249,318,007.20x = 373,977,010.80 × 242,143,553.70 - Step 4: Simplify right side
249,318,007.20x = 90,556,122,397,215,280 - Step 5: Solve for x
x = 90,556,122,397,215,280/249,318,007.20 - Step 6: Final answer
x = 363,215,330.55
Related Problems
Find fourth proportional to 124,659,003.60, 186,988,505.40 and 121,071,776.85
Half scale
Find fourth proportional to 498,636,014.40, 747,954,021.60 and 484,287,107.40
Double scale
Find fourth proportional to 249,318,008.20, 373,977,012.30 and 242,143,554.70
Similar ratio
Find fourth proportional to 373,977,010.80, 560,965,516.20 and 363,215,330.55
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.